The branch main has been updated by arichardson:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=d98f2712c7f5e4636afa65c8c3875bbb5ff981cf

commit d98f2712c7f5e4636afa65c8c3875bbb5ff981cf
Author:     Alex Richardson <[email protected]>
AuthorDate: 2021-10-08 08:36:30 +0000
Commit:     Alex Richardson <[email protected]>
CommitDate: 2021-10-11 10:51:44 +0000

    linuxkpi: implement ida_alloc()
    
    Needed for the virtio-gpu driver.
    
    Reviewed By:    #linuxkpi, manu, bz, hselasky
    Differential Revision: https://reviews.freebsd.org/D32366
---
 sys/compat/linuxkpi/common/include/linux/idr.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/idr.h 
b/sys/compat/linuxkpi/common/include/linux/idr.h
index 7387032fd989..cba3f96c88ae 100644
--- a/sys/compat/linuxkpi/common/include/linux/idr.h
+++ b/sys/compat/linuxkpi/common/include/linux/idr.h
@@ -140,6 +140,11 @@ ida_alloc_max(struct ida *ida, unsigned int max, gfp_t gfp)
        return (ida_simple_get(ida, 0, max, gfp));
 }
 
+static inline int ida_alloc(struct ida *ida, gfp_t gfp)
+{
+       return (ida_alloc_max(ida, ~0u, gfp));
+}
+
 static inline bool
 ida_is_empty(struct ida *ida)
 {

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